Cam-operating mechanism for windmills.



M. C. BRAGA.

CAM OPERATING MECHANISM FOR WINDMILLS.

APPLICATION man SEPT. 7. 1911.

1,165,837, Patented Dec. 28, 1915.

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M. C. BRAGA.

v CAM OPERATING MECHANISM FOR WINDMILLS.

APPLICATION FILED SEPT. 7. 191].

1,165,837., Patented I) e0.28,1$ 915.

2 SHEETS-SHEET 2- wi/tmeooco V UNlTED STATES PATENT @FFflCli.

MANUEL efzenaea, OF GOODING, IDAHO.

CAM-OPERATING- MEGHANISM FOB WINDMILLS.

Application filed September 7, 1911.

To all whom it may concern Be it known that I, MANUEL C. BRAGA, a citizen of the United States, residing at Gooding, in the county of Lincoln and State of Idaho, have invented certain new and useful Improvements in Cam-Operating Mechanism for Windmills, of which the following is a specification.

My invention relates to improvements in wind mills, and has for its leading object the provision of improved novel means for transmitting and changing the rotary motion of the vane bearing shaft into the reciprocating movement of the power transmitting or pum rod.

The further 0 j ect of my invention is the provision of improved power transmission mechanism for wind mills in which the parts may be readily adjusted to vary the amount of movement of the pump rod.

Other objects and advantages of my im proved wind mill will be readily ap arent by reference to the following description taken in connection with the accompanying drawings and it will be understood that I may make any modifications in the specific structure shown and described within the scope of my claims without departing from or exceeding the spirit of my invention.

Figure 1 represents a top plan view. Fig. 2 represents a vertical sectional view of Fig. 1. Fig. 8 represents a vertical sectional view of Fig. 2. Fig. i represents an end view with the guiding vane swung to one side to hold the wind engaging vanes in inoperative relation to the wind. Fig. 5 represents a detailed view of the driven gear wheels, and Fig. 6 represents a detailed view of one of the cam wheels.

In the drawings, in which similar charac ters of reference are employed to denote corresponding parts throughout the several views, the numeral 1 designates the supporting frame work of the wind mill having secured at the upper end thereof the turn table 2 on which is rotatably mounted the basal portion 3 of the supporting bracket member of my actuating mechanism, said base having rising therefrom the bracket arms l connected at their upper end by the 1 cross bar 5, suitable antifriction rollers or bearings 6 being interposed between the turntable 2 and the base 3 to facilitate rotation of the bracket on the turn-table. Depending from the bracket through an aperture in the turn-table is the pipe 6 which Specification of Letters Patent.

Patented Dec. 28, 1915.

Serial No. 648,108.

forms a guide for the reciprocating pump rod 7. Said rod 7 extends upward through an aperture in the base 3 and has formed therein the loop portion 8 having extending upward therefrom the squared upper end 9 which is slidably engaged in a bearing 10 formed centrally in the cross bar 5. Secured on the pump rod below the said loop 8 is the cross head bar 11 which bears on each end an antifriction roller 12.

J ournaled in the lower portion of the arms 4 at one side thereof to prevent the same from engaging the reciprocating rod 7 is the shaft 13 having a squared central portion upon which is secured a pair of pinions 14 and having an end projecting from one of the arms 1 on which is secured the hub block 15. Said hub block 15 has radiating therefrom the spoke arms 16 connected by the braces 17, while secured to the outer face of the said braces 17 are the blades or vanes 18 disposed at the correct angle to be satisfactorily driven to rotate the shaft 13 upon impact of an air current thereagainst.

Journaled in the upper portions of the arms l is a transversely extending shaft 19 which has secured thereon the pair of gears 20 which are in mesh with the pinions 14: of the power shaft 13. Said shaft extends through the loop 8 of the pump rod and serves as a guide for the said pump rod, while the gears 20 secured on the shaft are of such size that the wind wheel shaft will make a plurality of revolutions while the shaft 19 is making a single revolution, the said shaft 19 being consequently powerfully driven by the rotation of the wind wheel.

Projecting outwardly from the central portion of each of the gears 20 is a dovetailed tenon 21 adapted to fit into the dovetailed groove or mortise 22 which is formed in the rear face of each of the cam wheels or disks Said disks are engaged on the tenons or lugs 21 before the gears are secured on the axle 19 and have formed therein the slot 24 through which the shaft 19 extends, set screws 26 carried by the lug or tenons 21 and clamped against the disks 23 serving to lock thedisks in desired eccentric position relative to the gears.

To impart a reciprocating movement to the piston rod, 1 form on the disks 23 the outer annulus or rib 27 and the inner annulus 28 which are sufficiently spaced apart to receive the rollers 12 of the cross head 11 therebetween. It will thus be seen that as the gears are rotated the eccentric arrangement of the disks on the gears will vary the position of the groove 29 between the two annuli relative to the cap plate 2 and consequently will serve to raise and lower the lower bearing ends of the cross heads and thus to shift the pump rod 7.

To hold the wind wheel at all times against the current of air to receive the impact therefrom, I laterally project one end of the cross bar or brace and secure to the basal portion of one of the arms a the bracket 30, while secured in said projecting end and bracket is the vertical rod 31 on which is rotatably mounted the upper arm 32 and the lower arm 33 of the guide wing or vane 3%, said arms 32 and 33 being connected by braces 35. The arms and 33 are slidably engaged on the rod and are also capable of rotation therearound, while to allow of the sliding movement of the arms and prevent undue binding thereof, I secure to the upper arm 32 the bracket 38 bearing the groove wheel 37 bearing against one side of the rod 31 while secured to the arm 33 and spanning the rod is the bracket 38 bearing the grooved wheel 39 bearing against the opposite side of the rod.

To limit the movement of the vane and cause the same to be disposed at right angles to the wind wheel, I secure to the arm a the outwardly projecting bracket lug 4:0 for engaging the arm 33, while secured to and inclining upward from the bracket to the bracket 11 secured to the side of the arm 4 is the guide 42 on which the arm 33 rides, said guide causing the arm 33 to ride up ward onto the abutment or supporting bracket 43 which is secured to the side of the arm 4 above the bracket 30 on which the arms 33 normally rests, the connection H passing around the sheave 6L5 carried by the bracket 41 to permit of drawing and securing of the vane bearing arms and thus of the vane in parallel relation to the Wind wheel.

From the foregoing description taken in connection with the accompanying drawings, the construction and operation of my improved pump rod actuating mechanism for wind mills will be readily apparent, and it will be seen that I have provided an ex tremely simple and efficient mechanism for satisfactorily imparting a direct recipro-' eating movement to a pump rod without the use of intermediate cranks or pitmen which is extremely desirable and in which the amount of movement or length of strokev of the pump rod may be varied as desired by a slight adjustment of the actuating mechanism. I claim:

The combination with a shaft, gear thereon, and means for driving said gear of an eccentric cam slidably mounted on one face of the gear and provided with a slotted opening receiving the shaft, means for locking the cam against movement relative to 7 said gear and a connecting rod engaging said cam. V

In testimony whereof I afiix my signature, in the presence of two witnesses.

Jnssn CLYDE SISTABE, PnRoY F. SUTPHEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, I). G. 

